Element Instances

A new database (DB) starts with a single world element with name '/*'. Users will then create instances of other element types. For example, a system user might create an initial hierarchy of sites and zones in a Model DB, leaving it to other users to create the actual Plant items.

An element instance will always be created within the primary hierarchy. For example, a new ZONE element must be created under an existing SITE. It cannot be created as a 'freestanding' element outside the existing hierarchy.

The actual element hierarchy can be viewed with the AVEVA E3D Design explorer.

All element instances within a multiple Database (MDB) are accessible at all times.